Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - SERVICE AVAILABILITY CONFIGURATION GUIDE 2010-10-08 Configuration Manual page 220

JunosE 11.3.x Service Availability Configuration Guide
primary line module
continuation of data forwarding after
failure of...............................................................69
failure of...................................................................69
mirroring of user sessions..................................69
scenarios of configuration..........................................75
secondary line module
mirroring of subscriber sessions from
primary.................................................................69
not preserving fluctuating sessions...............69
taking over as primary.........................................69
sequence number checking
for data packets on L2TP tunnels...................72
similarity in cnonfiguration commands
with stateful SRP switchover...........................69
spare or standby module, secondary....................68
supported line module, IOA combination............69
supported LM and IOA combinations
for stateful switchover of LNS
sessions................................................................70
system operations when enabled on the
router..............................................................................74
unavailable for setting up
forcible termination of user sessions............69
using status LEDs for monitoring
states of line modules.........................................95
viewing
detailed history information for line module
in a slot..................................................................97
information about starts and switchovers
for line module in a slot..................................97
redundancy setting of line module in a
slot.........................................................................95
stateful line module switchover commands
line-card switch...............................................................73
line-card switchmode high-availability slot.........73
stateful line module switchover, scenarios
not supported in software releases
restart of line modules........................................68
setting disabled on the router
disconnection of user sessions.......................68
excessive time for rebuilding user
sessions...............................................................68
reestablishment of client
connections........................................................68
restart of line modules........................................68
198
stateful SRP switchover
configuration independent of
stateful line module switchover......................69
differences in keywords of commands
with stateful line module switchover............69
disruption of connection between ICs
reestablishment of ICC sessions.....................76
switch relearns MAC addresses.......................76
does not prevent root cause of reload or restart
similarity in behavior with stateful line
module switchover...........................................70
log messages
transition from pending to active
state.......................................................................92
similarity in configuration commands
with stateful line module switchover............69
stateful SRP switchover. ......................................................37
See also high availability
stateless switchover mode, line modules
default behavior for redundant LMs.......................83
system events that occur............................................83
temporary halt in working of I/O modules...........83
states
high availability...............................................................38
statistics
for policy manager
collection frequency from primary
module..................................................................72
polling and sending to secondary line
module..................................................................72
for PPP applications
collection frequency from primary
module..................................................................72
polling and sending to secondary line
module..................................................................72
last collected value used as baseline
on the primary line module................................72
status LEDs
monitoring redundancy state of SRP and line
modules
OK LED......................................................................95
ONLINE LED............................................................95
REDUNDANT LED.................................................95
status LEDs, monitoring.......................................................22
subscriber sessions
preservation of active
during stateful line module
switchover...........................................................68
support, technical See technical support
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